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Implant porous niobium-titanium alloy material for medical use and preparation method of alloy material

A titanium alloy and porous niobium technology, which is applied to the medical implantation porous niobium-titanium alloy material and its preparation, and the porous niobium-titanium alloy material and its preparation field, can solve the problem of large elastic modulus, high sintering temperature of niobium stent, stress shielding, etc. problem, to achieve the effect of high porosity, moderate hardness and lower elastic modulus

Inactive Publication Date: 2015-12-23
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at overcoming the deficiencies of the prior art, aiming at the problems of high sintering temperature and large elastic modulus of traditional niobium stents which easily cause stress shielding, and provides a porous niobium-titanium alloy material for medical implantation and its preparation method

Method used

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  • Implant porous niobium-titanium alloy material for medical use and preparation method of alloy material
  • Implant porous niobium-titanium alloy material for medical use and preparation method of alloy material

Examples

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Effect test

Embodiment 1

[0051] 1. Weigh 6g of polyvinyl alcohol, put it into a beaker with 100ml of deionized water, add an appropriate amount of distilled water to the mark, put the beaker into a water bath, heat it in a water bath and stir evenly to make it an aqueous solution of polyvinyl alcohol. According to the weight ratio of niobium powder and titanium powder of 9:1, weigh 45g of niobium powder and 5g of titanium powder with a balance, the oxygen content is less than 0.1%, and the carbon content is less than 0.02%, and the niobium powder and titanium powder are ball milled to obtain niobium titanium For the composite powder, add the niobium-titanium composite powder into an aqueous solution of 7 g of polyvinyl alcohol, stir and mix evenly to obtain a niobium-titanium mixed powder slurry. select φ A 10×25mm porous polyurethane foam is put into it for dipping until the pores of the polyurethane foam are filled with the niobium-titanium mixed powder slurry, and the polyurethane foam filled with...

Embodiment 2

[0058] 1. Weigh 5g of polyvinyl alcohol, put it into a beaker with 100ml of deionized water, add an appropriate amount of distilled water to the mark, put the beaker into a water bath, heat it in a water bath and stir evenly to make it an aqueous solution of polyvinyl alcohol. According to the proportion of niobium powder and titanium powder weight ratio of 3:1, weigh 60g niobium powder and 20g titanium powder respectively with a balance, the oxygen content is less than 0.1%, and the carbon content is less than 0.02%. After the niobium powder and titanium powder are ball milled, niobium powder is obtained. For the titanium composite powder, add the niobium-titanium composite powder into an aqueous solution of 10 g of polyvinyl alcohol, stir and mix evenly to obtain a niobium-titanium composite powder slurry. Select a porous polyurethane foam of 10×10×30mm and put it into it for impregnation until the pores of the polyurethane foam are filled with the niobium-titanium mixed powd...

Embodiment 3

[0065] 1. Weigh 3g of polyvinyl alcohol, put it into a beaker with 100ml of deionized water, add an appropriate amount of distilled water to the mark, put the beaker into a water bath, heat it in a water bath and stir evenly to make it an aqueous solution of polyvinyl alcohol. According to the weight ratio of niobium powder and titanium powder of 1:1, weigh 50g of niobium powder and 50g of titanium powder with a balance, the oxygen content is less than 0.1%, and the carbon content is less than 0.02%. After the niobium powder and titanium powder are ball milled, niobium powder is obtained. Titanium composite powder, adding the niobium-titanium composite powder into an aqueous solution of 14 g of polyvinyl alcohol, stirring and mixing evenly to obtain a niobium-titanium composite powder slurry. select φ A 10×25mm porous polyurethane foam is put into it for dipping until the pores of the polyurethane foam are filled with the niobium-titanium mixed powder slurry, and the polyuret...

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Abstract

The invention relates to a porous niobium-titanium alloy material and a preparation method thereof, and in particular relates to an implant porous niobium-titanium alloy material for medical use and a preparation method of the alloy material, belonging to the field of a medical porous alloy material. According to the implant porous niobium-titanium alloy material for medical use disclosed by the invention, the mass ratio of niobium to titanium in the porous niobium-titanium alloy material is (9 to 1)-(1 to 3), compressive strength is 47.6-109.3Mpa, elasticity modulus is 0.21-0.46GPa, aperture is 400-500 microns and porosity is 40-80%. The invention also discloses a preparation method of the porous niobium-titanium alloy material. The implant porous niobium-titanium alloy material for medical use is closer to human bone in elasticity modulus and is excellent in biocompatibility.

Description

technical field [0001] The invention belongs to the field of medical porous alloy materials, in particular to a porous niobium-titanium alloy material and a preparation method thereof, in particular to a medical implant porous niobium-titanium alloy material and a preparation method thereof, belonging to the field of medical porous alloy materials. Background technique [0002] Biomaterials, also known as biomedical materials, are mainly used to replace damaged or missing human tissue structures to achieve the purpose of restoring tissue shape and performance. Metal niobium and titanium have good mechanical compatibility, strong corrosion resistance and excellent biocompatibility, and are widely used in the field of human bone tissue replacement. The elastic modulus of currently used medical titanium alloy implants does not match that of human bone, which easily leads to the "stress shielding" effect in clinical applications. In addition, the low wear resistance of titanium ...

Claims

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Application Information

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IPC IPC(8): A61L27/06A61L27/56A61L27/16A61L27/18
Inventor 阮建明刘珏常林
Owner CENT SOUTH UNIV
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